2007-01-15 17:07:07 · 5 answers · asked by chess_e4_pr 1 in Science & Mathematics ➔ Biology
The reason that human (acutally all mammalian)mature red blood cells lack a nucleus appears to be so that the red blood cell has room for more hemoglobin and therefore can carry more oxygen per cell.
Remember the human red blood cells doen't always lack a nucleus. Up until the final steps of red blood cell maturation, they do have one.
2007-01-15 17:16:12 · answer #1 · answered by Luchie V 1 · 0⤊ 0⤋
erythrocytes doesnt have nucleus becase it's synthesis from protein instead of cell.this feature help erythrocyte to increase it's surface area to the volume ratio and allow the oxygen to have more space to 'squeeze' into erythrocyte.
2007-01-16 05:07:53 · answer #2 · answered by urakushi 2 · 0⤊ 0⤋
The nucleus is extruded during development from red blood cell (RBC) precursors. It is beleived that this is to maximize the oxygen-carrying capacity of the RBC...also explains why it is not very long-lived cell.
2007-01-16 01:11:56 · answer #3 · answered by teachbio 5 · 0⤊ 0⤋
so that the rbc can attain its characteristic biconcave shape. it increases the surface area for carrying oxygen..
also it has no mitochondria so that theres no consumption of oxygen by the cell
erythrocytes or rbcs are thus called higly differentiated cells which have no mitochondia and nucleus and have lost the capacity to divide
2007-01-16 01:17:59 · answer #4 · answered by Hawk 2 · 0⤊ 0⤋
Also, it is speculated that not having DNA prevents viruses from hijacking the cells. Viruses would get a free ride all over the body if they could multiply in the trillions of blood cells.
2007-01-16 03:22:36 · answer #5 · answered by Pseudo Obscure 6 · 0⤊ 0⤋